diff options
Diffstat (limited to 'fs/squashfs/super.c')
| -rw-r--r-- | fs/squashfs/super.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 48b6f4a385a6..88b4f8606652 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -36,12 +36,14 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/magic.h> +#include <linux/xattr.h> #include "squashfs_fs.h" #include "squashfs_fs_sb.h" #include "squashfs_fs_i.h" #include "squashfs.h" #include "decompressor.h" +#include "xattr.h" static struct file_system_type squashfs_fs_type; static const struct super_operations squashfs_super_ops; @@ -82,7 +84,7 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent) long long root_inode; unsigned short flags; unsigned int fragments; - u64 lookup_table_start; + u64 lookup_table_start, xattr_id_table_start; int err; TRACE("Entered squashfs_fill_superblock\n"); @@ -139,13 +141,6 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent) if (msblk->decompressor == NULL) goto failed_mount; - /* - * Check if there's xattrs in the filesystem. These are not - * supported in this version, so warn that they will be ignored. - */ - if (le64_to_cpu(sblk->xattr_table_start) != SQUASHFS_INVALID_BLK) - ERROR("Xattrs in filesystem, these will be ignored\n"); - /* Check the filesystem does not extend beyond the end of the block device */ msblk->bytes_used = le64_to_cpu(sblk->bytes_used); @@ -253,7 +248,7 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent) allocate_lookup_table: lookup_table_start = le64_to_cpu(sblk->lookup_table_start); if (lookup_table_start == SQUASHFS_INVALID_BLK) - goto allocate_root; + goto allocate_xattr_table; /* Allocate and read inode lookup table */ msblk->inode_lookup_table = squashfs_read_inode_lookup_table(sb, @@ -266,6 +261,21 @@ allocate_lookup_table: sb->s_export_op = &squashfs_export_ops; +allocate_xattr_table: + sb->s_xattr = squashfs_xattr_handlers; + xattr_id_table_start = le64_to_cpu(sblk->xattr_id_table_start); + if (xattr_id_table_start == SQUASHFS_INVALID_BLK) + goto allocate_root; + + /* Allocate and read xattr id lookup table */ + msblk->xattr_id_table = squashfs_read_xattr_id_table(sb, + xattr_id_table_start, &msblk->xattr_table, &msblk->xattr_ids); + if (IS_ERR(msblk->xattr_id_table)) { + err = PTR_ERR(msblk->xattr_id_table); + msblk->xattr_id_table = NULL; + if (err != -ENOTSUPP) + goto failed_mount; + } allocate_root: root = new_inode(sb); if (!root) { @@ -301,6 +311,7 @@ failed_mount: kfree(msblk->inode_lookup_table); kfree(msblk->fragment_index); kfree(msblk->id_table); + kfree(msblk->xattr_id_table); kfree(sb->s_fs_info); sb->s_fs_info = NULL; kfree(sblk); @@ -355,6 +366,7 @@ static void squashfs_put_super(struct super_block *sb) kfree(sbi->fragment_index); kfree(sbi->meta_index); kfree(sbi->inode_lookup_table); + kfree(sbi->xattr_id_table); kfree(sb->s_fs_info); sb->s_fs_info = NULL; } |